bool seissol::checkpoint::mpio::Wavefield::init(real* dofs, unsigned int numDofs)
{
seissol::checkpoint::Wavefield::init(dofs, numDofs);
// Create the header data type
MPI_Datatype headerType;
int blockLength[] = {1, 1, 1, 1};
MPI_Aint displ[] = {offsetof(Header, identifier), offsetof(Header, partitions),
offsetof(Header, time), offsetof(Header, timestepWavefield)};
MPI_Datatype types[] = {MPI_UNSIGNED_LONG, MPI_INT, MPI_DOUBLE, MPI_INT};
MPI_Type_create_struct(4, blockLength, displ, types, &headerType);
setHeaderType(headerType);
// Define the file view
defineFileView(sizeof(Header), numDofs);
return exists();
}
bool seissol::checkpoint::mpio::Wavefield::init(size_t headerSize, unsigned long numDofs, unsigned int groupSize)
{
seissol::checkpoint::Wavefield::init(headerSize, numDofs, groupSize);
// Create the header data type
// We cannot use header since this will be called on I/O nodes as well
MPI_Datatype headerType;
MPI_Type_contiguous(headerSize, MPI_BYTE, &headerType);
setHeaderType(headerType);
// Define the file view
defineFileView(headerSize, sizeof(real), numDofs);
// Large buffers are supported?
m_useLargeBuffer = utils::Env::get<int>("SEISSOL_CHECKPOINT_MPIO_LARGE_BUFFER", 1) != 0;
return exists();
}
